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M1.3 Depth: 1.1 km

M1.3 Earthquake near Riverside County, California (United States)

UTC time: 2026-08-18 14:58:12 UTC Local time: —

About this earthquake

On August 18, 2026 at 14:58 UTC, a magnitude M1.3 earthquake occurred near Riverside County, California (United States). With a focal depth of about 1 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: 201 earthquakes were recorded in the past 24 hours, the strongest reaching M4.8.

Map

Depth profile

Depth profile Depth: 1.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 1.1 km
Shallow
1.1 km
1.1 km — shallower than the regional average (15.4 km)
Regional average: 15.4 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

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    Distance: 71 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
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  • Uinkaret Field
    Distance: 373 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States
  • Ubehebe Craters
    Distance: 386 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • San Francisco Volcanic Field
    Distance: 412 km ·Volcanic field ·Elevation: 3'850 m ·Last eruption: 1075 ·United States
  • San Luis, Isla
    Distance: 447 km ·Tuff cone ·Elevation: 183 m ·Last eruption: -1141 ·Mexico

Historic earthquake map · United States

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Country statistics · United States

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View earthquake KPIs, strongest and latest events, and averages for this country.

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